SOONFIRE FD USB C Rechargeable Bike Headlight

Product Overview

The SOONFIRE FD USB C Rechargeable Bike Headlight (Model FD39) is a high-performance lighting solution designed for various cycling activities, including road biking, mountain biking, and night riding. It features two powerful LEDs, offering a maximum brightness of 2530 lumens and a beam distance of up to 177 meters. The light is built with a durable aluminum body, is IP8-rated waterproof, and supports quick assembly and disassembly for user convenience. It offers multiple brightness settings and special modes to adapt to different lighting conditions and user needs.

Image: The SOONFIRE FD USB C Rechargeable Bike Headlight, shown with its included USB-C charging cable and a compact carrying case.

Package Contents

Please ensure all items are present in the package:

• SOONFIRE FD USB C Rechargeable Bike Headlight (Model FD39)
• USB C Charging Cable
• Handlebar Mount
• Batteries (pre-installed)
• Carrying Case

Setup & Installation

The SOONFIRE FD39 headlight is designed for quick and tool-free installation on most bicycle handlebars.

1. Attach the Mount: Secure the handlebar mount to your bicycle handlebar. The mount is adjustable and compatible with handlebar sizes ranging from 22mm to 35mm. Ensure the mount is tightened securely to prevent movement during rides.
2. Insert the Headlight: Slide the headlight onto the mount until it clicks into place. The quick assembly and disassembly design allows for easy attachment and removal.
3. Adjust Angle: Once mounted, you can pivot the light up or down to achieve the desired beam angle. For optimal visibility and to avoid blinding oncoming traffic, it is recommended to aim the light slightly downwards.

Image: The headlight mounted on a bicycle handlebar, illustrating its rotational capability for precise beam direction.

Image: A hand demonstrating the "One touch Dismount Button" for quick removal of the headlight from its mount.

Image: The headlight featuring a reserved M6 screw hole, demonstrating compatibility with accessories like GoPro mounts for versatile usage.

Operation

The headlight features a single button for controlling power and modes.

• Power On/Off: Press and hold the side switch for approximately 2 seconds to turn the light on or off.
• Cycle Modes: With the light on, quickly press the switch to cycle through the 5 brightness settings: Turbo, Medium, Low, Strobe, and SOS.
• Lockout Mode (Beacon Mode): When the flashlight is off, press and hold the side switch for 3 seconds to enter the firefly mode (Beacon Mode). Under firefly mode, press and hold the side switch for another 3 seconds to access the lockout mode. This prevents accidental activation.
• Unlock: Under lockout mode, quickly click the switch three times to unlock the device. Factory settings are restored after charging.

Image: A visual guide to the various operating modes including Turbo, Medium, Low, Strobe, SOS, Lockout (Beacon Mode), and Mode Memory. Also shows battery level indicators (Blue: Saturated, Red: Poor, Red flashing: Needs Charging).

Image: Detailed instructions for activating and deactivating Lockout (Beacon) Mode, and how to unlock the device.

Charging

The SOONFIRE FD39 features convenient USB-C charging and a long-lasting battery.

• Charging Port: Locate the USB-C charging port on the device.
• Connect Cable: Use the provided USB-C charging cable to connect the headlight to a compatible USB power source (e.g., computer, wall adapter, power bank).
• Charging Indicator: The battery level indicator will show red during charging and turn blue when fully charged. Charging will turn off automatically when complete.
• Battery Life: The light offers a max runtime of 60 hours or greater than 600km on a single charge, depending on the mode used. It is recommended to charge the device at least once every 6 months to maintain battery health.

Image: The headlight connected via its USB-C port, illustrating various charging methods including laptop, wall adapter, and car charger. Battery indicators for charging (red) and fully charged (blue) are also shown.

Modes & Brightness

The FD39 offers versatile lighting modes to suit different riding conditions:

• Turbo Mode: 2530 lumens, 2.5 hours runtime. Provides maximum illumination for demanding situations.
• High Mode: 1000 lumens, 6 hours runtime. Ideal for general night riding.
• Medium Mode: 650 lumens, 30 hours runtime. Suitable for moderate lighting needs.
• Low Mode: 300 lumens, 60 hours runtime. For extended use or low-light environments.
• Firefly Mode: 8 lumens, 850 hours runtime. A very low setting for minimal light or emergency beacon.
• Strobe Mode: 850 lumens, 8.5 hours runtime. For increased visibility during the day or in low-light conditions to alert others.
• SOS Mode: For emergency signaling.

The light features a 120° wide floodlight and a beam distance of approximately 177 meters, ensuring clear vision and broad coverage.

Image: The headlight demonstrating its powerful 2530 lumens and 177-meter beam distance, providing wide-range illumination for clear vision at night.

Image: A detailed chart outlining the lumens, beam distance, peak beam intensity, impact resistance, and IP68 standard for each mode (Turbo, High, Medium, Low, Firefly).

Waterproofing

The SOONFIRE FD39 is designed with an IP8-rated water-resistant aluminum body, ensuring extreme durability and indestructibility even in heavy rain or challenging environments. It is submersible to 2 meters for 30 minutes and totally protected against dust and foreign objects.

Maintenance

To ensure the longevity and optimal performance of your SOONFIRE FD39 headlight, follow these maintenance guidelines:

• Cleaning: Wipe the light with a soft, damp cloth to remove dirt and debris. Do not use abrasive cleaners or solvents.
• Storage: Store the headlight in a cool, dry place when not in use. If storing for an extended period, ensure the battery is partially charged (around 50%) and recharge it every 3-6 months to prevent deep discharge.
• Temperature Regulation: The light features auto temperature regulation with cooling fins to prevent overheating and extend its lifespan. Allow the light to cool down if it becomes excessively hot during prolonged use on high settings.
• Battery Replacement: The light is powered by an included rechargeable battery (pre-installed). If you require a replacement battery or spare parts, please contact SOONFIRE customer support for assistance.

Troubleshooting

Specifications

Warranty & Support

For warranty information and support regarding your SOONFIRE product, please refer to the manufacturer's warranty details provided with your purchase or visit the official SOONFIRE website. Manufacturer's warranties may vary based on product usage, purchase location, and seller. It is recommended to review the warranty carefully and contact the manufacturer directly for any questions or assistance.

SOONFIRE is committed to providing high-quality products and excellent after-sales service.